Guidebooks to the Unexplained: Ghosts
Guidebooks to the Unexplained: Witches
Guidebooks to the Unexplained: Men in Black
Guidebooks to the Unexplained: Cryptids
Guidebooks to the Unexplained: Lost Lands
Guidebooks to the Unexplained: Area 51
Paranormal Investigations: Aliens, UFOs, and Unexplained Encounters
Paranormal Investigations: Ghosts, Possessions, and Unexplained Presences
Surviving the Impossible: Surviving a Zombie Apocalypse
Surviving the Impossible: Surviving an Alien Invasion
Documents of the Salem Witch Trials: Eyewitness to History
Paranormal Investigations: The Bermuda Triangle, Stonehenge, and Unexplained Places
Paranormal Investigations: Bigfoot, the Loch Ness Monster, and Unexplained Creatures
Paranormal Investigations: ESP, Superhuman Abilities, and Unexplained Powers
Paranormal Investigations: The Hope Diamond, Cursed Objects, and Unexplained Artifacts
Monster Hunting: Hunting Werewolves
YIKES! It's Haunted: Haunted Houses
YIKES! It's Haunted: Haunted Battlefields and Cemeteries
Understanding the Paranormal: Investigating ESP and Other Parapsychological Phenomena